//#include "iostream"
//#include "assert.h"
//
//#include "stdlib.h"
//
//typedef char BTDataType;
//typedef struct BinaryTreeNode
//{
//	BTDataType val;
//	struct BinaryTreeNode* left;
//	struct BinaryTreeNode* right;
//}BT, BTNode;
//
//void createTree(BT** e);
//void InOrderTraverse(BT* e);
//void PreorderTraversal(BT* e);
//void PostorderTraversal(BT* e);
//void _InOrderTraverse(BT* e);
